Misc: Who did Adolph Hitler keep a framed photograph on his desk of?

Questions

- A composition for four performers.?

(It.) - As if, almost.?

- An opera in which the principal character undergoes a test or a difficult journey, or experiences hardships before reaching his goal (e.g . Mozart's Magic Flute).?

- A modern ballroom dance with quick steps.?

- A composition for five performers.?